Based on the research of other scholars, this article divides the prefabricated building supply chain into six stages: design and development, production procurement, warehousing and transportation, lifting construction, and facility recycling. Taking the well-known prefabricated building of Leishenshan Hospital as an example, this study analyzes the possible risks of these six stages in the prefabricated building supply chain, such as insufficient design capabilities, production efficiency, the low standardization level of molds, transportation policy constraints, insufficient protection of components during the warehousing and transportation stage, insufficient organizational capacity, inadequate supervision, and problems such as missing recycling processes. Due to the special nature of Leishenshan Hospital, which has received great attention, some risks that have been avoided due to special reasons have been proposed, and the power of management personnel has been strengthened for these risks, digitization and standardization of molds, and strengthen on-site management level. From this study, construction, component production, and design enterprises can learn from measures such as increasing awareness of component recycling.